Drain connection.



E. L; DAWES. DRAIN CONNECTION.

' APPLICATION FILED JAN.2B. 1909.

Patented Aug. 10, 1909.

' )Nl ENTOR 6 am? M Ma 1 WITNESSES f? x. W

Al/orney drainage.

EDWARD L. DAWES, OF N BRIGHTON, PENNSYLVANIA, ASSIGNOR T0 STANDARDSANITARY MANUFACTURING COMPANY, OF PITTSBURG, PENNSYLVANIA, ACORPORATION OF N JERSEY.

DRAIN CONNECTION.

No. senses.

To all whom it may concern:

Be it known that I, EDWARD L. DAWES, a

citizen of the United States, and resident.

of New Brighton, in the count-y of Beaver and State of Pennsylvania,have invented a new and useful Improvement in Drain Gonnections, ofwhich the following is a pecification.

My invention provides a new form of dra n connection. ior use on tubs,sinks and basins when it is desired to use a stopper or pluginconnection with the drain openmg to prevent escape of fluid.

Fittings which have heretofore been applied to the drain openings oftubs and the like have required a recess to be formed. in the surface ofthe tub surrounding the drain openin Practically all metal tubs, sinks,etc, 0% high grade are now covered on their inner surfaces With vitreousenamel and it has been found diificult to properly enamel tuhs whichhave a recess of the kind referred to. Moreover, when fittings of WelLknown style are applied to tubs so termed it is found that the enamel isliable to creek or craze either atthe time of applying the fittings orsubsequently for reasons unden stood by persons versed in the art. Theportions of fittings heretofore used which appear Within the tul or sinkhave also been quite large and generally some kind of fastening deviceextends through the fitting and. is visible fromwithin the tut).

My invention provides a fitting which may he applied to gt tub bottomwhich is of ordinary uniform shape Without any abrupt angle or changesof direction: and without any recess surrounding the drain opening. Thetitling does not tend for any reason to ereelr craze the enamel. The tubor sink nro ided with a shallow depression sing with the main surfaceend surrounding the drain depression is of an easy not in the nature ofa. recess. 7 in some cases to facilitate A tub COllStiillQi-(Bil asdescribed may be perfectly enemeled with a minimum number of failures.

A fitting constructed in accordance with our. .lt .ls employ myinvention is small and simple in con struction, consrstmg of few parts.it dis penses with an y exterior pregection on the tub bottom. Theportion of the fitting visible Within the tub 18 of small diameter andhas Specification oi Letters .Petent.

. Application filed. January 23, 1909. Serial No. 474,638.

Patented Aug. 10, 1909.

a pleasing and decorative appearance. No fastening device is visiblewithin the tub. The fitting further provides for complete drainage ofall the fluid in the vessel, there being no portion of the fluidcontents which is trapped by any part of the tub bottom or fitting.

. The accompanying drawing. illustrates an exemplifying structure inwhich the invention is embodied, but it is to be understood that theinvention is capable of embodiment in different formsQ In the drawing:Figure l is a vertical section through a tub'bottoi'n and fittingconstructed in accordance with my invention. Fig. 2 is a View fromwithin the tub of a fragment of a tub bottom with. the fittinginposition, the plug being removed.

Rggfierence cha actor I designates the/main inner bottom surface of atub sink or basin. This surface is generally covered with vitreousenamel but to avoid complicating the drawing the enamel is omitted.

23 is the dreii'i opening passing through the tub bottom. it mayhcve aperfectly straight cylindrical wall, as shown. v

3 is a depression surrounding the drain opening and joining the maininner surface of the tub-with a gradual. curvature. The inner surface ofthe depression as shown immediately joins the drain opening without anyintervening recess. The depression may son'ietim'es be omitted and inthis case the substantially horizontal and that inner bottom surface ofthe tub contlnucs without change in shape directly to the edge of thetends below the outer surface of the tuh and an outwardly extending well7, the bi n11 edge oi" which rests upon the in: surtace 2, oi the tubbottom close to the ill in opening. A nut 8 is screwed on the nipplebelow the lul: and servas to hold the flange firn'ily against the iiincrtuli surface. A gasket 9 is placed between the nut and the outer hotloinsurface of the tub providing a fluid seal. One or more radial holes 10are drilled or otherwise formed through the nipple so that the bottom ofthe hole or holes slightly below the adjoining inner bottom surface ofthe tub. One or more apertures '11 are ulso formed in the vertical wall7 of the flange.

s A nipple 4 passes through the drain. open? Hit) A plug 12 shaped tofit the opening in'the nipple is provided. Theupper end of the bore ofthe nipple is generally-flared as shown and the plug is deep enough sothat when it is in position it comes below and closes the holes 10.

The drain pipe 13 is connected with the nipple in any suitable way.

When the plug 12 is in position in the nipple the central openingthrough the nipple is closed and the inner ends of holes are also closedby the plug. No fluid can then escape from the tub through the drainopening. When the plug is pulled, however, the bulk of the water isdischarged through the central opening in the nipple and at the sametime water may pass through openings 11 which adjoin the tub surface andthen through holes 10 and so out through the nipple and drain pipe. Whenwater in the tub reaches the level of the upper surface of flange 6 itceases to flow over the flange and through the upper part of the bore of.the nipple and the fluid then rem'a'ining in the .tub passes outthrough apertures 11 and holes 10.- These apertures and holes thusprovide means for draining out every particle of water in the tub orsink. When the depression 3 is used it facilitates the collection ofresidual water around the drain opening and the discharge of this waterthrough the opening and the depression also serves to bring the uppersurface of the fitting within the tub down to approximately the level ofthe main bottom surface of the tub. By varyingthe depth of thedepression the position of the upper surface of the fitting in relationto a tub bottom may be varied. When depression 3 is not provided waterwill drain out through the fitting more completely than is the case withfittings heretofore used of which I have knowledge.

The nipple may be provided with crossbars 15 for the usual purpose.

I claim:

l. The combination of a tub or the like having an enameled inner surfaceand a substantially horizontal bottom, the bottom being provided with adrain 0 ening joining the inner bottom surface of t e tub without anyintervening recess, a nipple passing through the openingand providedwith a flange, means for holding the nipple in position, and one or morefluid passages passing throu h the flange of the nipple below the top ofthe nipple and adjoining the in her bottom surface of the tub for thedrainage of residual water;

2. The combination of a tub having a substantially horizontal bottom,the bottom provided with a drain opening and a gradual depressionsurrounding the drain opening, a

nipple passing through the opening and provided with a flange resting onthe inner bottom surface of the tub adjacent to the open-- ing, thenipple having a central bore, and a fluid passage extending through thenipple and flange below the top of the nipple, said passage adjoiningthe inner-bottom surface of thetub and serving to permit escape ofresidual water through the'nipple.

3. The combination of a tub having a substantially horizontal bottomprovided with a drain opening, a nipple passing through the opening,said nipple comprising a tubular threaded portion extending below thetub bottom and a flange resting on the inner bottom surface of the tub,a radial opening through the nipple and flange below the top of thenipple for tlie drainage of residual water and a nut screwed on thenipple below the tub bottom and serving to hold the flange against theinner tub surface. I

4. The combination of a tub or the like provided with a drain opening,the inner bottom surface of the tub immediately joining the openingwithout any intervening recess, a nipple passing through the opening andprovided with a lateral flange turne down at its periphery to form an aproxiinatelyvertical wall resting on the tu bottoxl,.;adjacent to theopening, and one or more fluid passages passing through the nipple andvertical wall below the top of the flange for the drainage of residualwater.

a 5. The combination of a tub having a substantially horizontal bottom,the bottom provided with a drain opening and a gradualdepression-surrounding the drain opening, a

nipple passing through the opening and provided with a flange resting onthe inner bot- 5 tom surface of the tub adjacent to the 0 ent ing, thenipple having a central bore, a 1 uid passage extending through thenipple and flange below the top of the nipple, said j' assage adjoiningthe inner bottomv surfac of the tub and serving to permit escape 0residual water through the nipple, and {a pm serving to close the top ofthe nipple fan said fluid passage.

6. The combination of a tub ham asubstantially horizontal bottom providewith a drain opening, a ni )ple passing through the opening, said nipp ecomprising a tubular threaded portion extending below thetub bottom anda flange resting on the inner bottom surface of the tub, ai radialopening through the nipple and flange below the top of the nipple forthe drainage of residual water, and a nut screwed on the nipple belowthe tub bottom and servin to hold the flange against the inn tub surace.

7. The combination? of a tub or the like provided with a {drain opening,the inner ottom surface of the tub immediately joining'thc openingwthout any intervening recess, a nipple pas-ping through the openi andprovided Wllj'l a latera flange turne down at its peri hery to form anap roxi- :lnately vertical W111 resting on the tu bot- I plug serving toclose the top of the nipple ing the inner bottom surface of the tub andtom adjacent to the opening, one or more, of the tub adjacent to theopening, thenipfluid passages passing through the nipple ple having acentral bore, a fluid passa 6 exnnd vertical wall below the top of theflange tending through the nipple and flange low for the drainage ofresidual water, and a; the top of the nipple, said passage'adjoin- 15and said fluid passage or passages. serving to permit escape of residualWater 8. The combination of a tub having a subthrough the nipple.stantially horizontal bot-tom rovided with a i drain opening andagradual epression surv EDWARD DAWES' rounding the drain opening, anipple pass: Witnesses: ing through the opening and provided with JOHNC. Rape,

a flange resting on the inner bottom surface FRANK PAINTER.

